Ember Data - Saving record loses has many relationships

Question

I am having an issue working with Ember Data Fixture Adapter. When saving a record, all of the record\'s hasMany associations are lost. I have created a simple JS Bin to ill

Answer 1

I hit the same problem and came to the same solution. Surely this is a bug in ember-data?

Here's my solution, the only difference is that I'm modifying JSONSerializer, rather than extended RESTSerializer because I'm using the local storage adapter.:

DS.JSONSerializer.reopen({
    serializeHasMany : function(record, json, relationship) {
        var key = relationship.key;

        var relationshipType = DS.RelationshipChange.determineRelationshipType(
                record.constructor, relationship);

        if (relationshipType === 'manyToNone'
                || relationshipType === 'manyToMany'
                || relationshipType === 'manyToOne') {
            json[key] = Ember.get(record, key).mapBy('id');
            // TODO support for polymorphic manyToNone and manyToMany
            // relationships
        }
    }
});